MakeACopy 2.6.0 (Release)

* Switched OCR engine to tesseract4android-openmp for better performance.
* Fixed OCR edge case where high confidence was reported with no detected text.
* Empty OCR results are now handled deterministically and normalized to confidence = 0.
* Removed misleading OCR score toasts when no text is detected.
* Added a clear “No text detected” message.
* Improved OCR retry and rotation handling for empty results.
* Stability and correctness improvements in the OCR pipeline.